Some examples taken from endgame tablebases (white to move in all cases):
Even if you are aware of the theory, however, the endgame is notoriously difficult to hold. If you don't believe me, check an endgame tablebase, or generate your own. KR can also be won or drawn, but this is almost always drawn). KR can be won or drawn depending on the initial position of the pieces, but in the majority of cases when it occurs in practice, it is drawn (KRN vs. KR, and it certainly has not changed the result.Īgain, KRB vs. KR is probably the most notable), but to my knowledge there has been no effect on KRB vs. It is true that computer-generated tablebases have refined some of the endgame theories (KQ vs. First, a simple endgame tablebase is hardly too complex for the human mind-humans have memorized numbers like pi and entire volumes of books, so why not a move list? Second, if the endgame tablebases produce a result that differs from theory, then the theory is changed people don't just continue playing with bad theory. Other optimal moves are displayed green.KRB vs. If your move is optimal it is displayed with a green arrow, otherwise red. After completing a task you can switch to Demo view where your moves are compared with optimal moves. Play moves trying to complete the specified task without exceeding the move limit. Choose a position to play using CONTENTS, LESSONS or TRAINING mode. We selected a set of interesting positions for playing against computer. Each number shows the mate distance if the selected piece was located on the square. If you hold a piece, a number is displayed on the squares. Right gesture on the move line produces the same result.Īfter activating the Play button (Board screen), the computer will reply automatically to the moves you make on the board.Īfter activating Drag button (icon with four arrows from the center) you can move pieces by dragging them on the board. Make a move by selecting it and touching Arrow Right. The tree screen shows the strongest moves in the position. Although the notation is only visible on the Notation screen it is also updated when you make moves on the other screens. You can browse the line and try new moves by making them on the board. The Notation screen displays a variation with optimal moves for both sides. This move can be performed by selecting Arrow Right (Move forward) button. The best move is highlighted on the board with a green arrow. Distance to mate is displayed in the upper status line. 3-piece tables are built into the application, resulting in instant response for such endgames. The results appears within a few seconds. The endgame server is automatically queried for all valid positions.
Pressing and holding a button displays a tooltip describing the action it performs. The Board screen allows you to place pieces on the board from a piece palette and manipulate the position in various ways. Two buttons (located in the left upper corner) let your switch from the current screen to the other screens.
The actions are performed with help of 3 screens: Board, Notation, and Tree. The program repliesĤ) Choose positions from carefully selected training positions and playĥ) Store your favorite positions, import and export themĪfter the first start the application is in POSITION mode designed to set up a position and calculate its evaluation and the best line.
#Chess endgame tablebase 7 pieces android
It allows any user with an Android device to take advantage of this huge database in order to analyze positions and to play chess with up to seven pieces on the board (including the kings).ġ) Setup a winning/losing position and discover the number of moves to mateĢ) Display the winning line with optimal moves for both sidesģ) Play against the program. The total size of the 7-man tables is 100 TB, much more than any normal user can store on his computer. The tables were calculated on a Lomonosov supercomputer by the Computer Science department of MSU. The generation of the 7-man endgame tables is a major achievement in the history of chess endgames. In other words, the Chess Lomonosov tables give you the final word on any position with seven or fewer pieces on the board! The exact moves to deliver checkmate can also be shown and at each step you can see which moves win, draw and lose. You will immediately know if a position is drawn or won and the precise number of moves until the opponent is checkmated. Have you ever wished that you had access to an endgame oracle which knows the precise evaluation of an endgame position and the best continuation for both sides? Well, the 7-man Chess Lomonosov Tables do exactly that.
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